C++ editor: Remove scanning/caching of includes

With the completion now in a separate thread this should
no longer be necessary.

Reviewed-by: Roberto Raggi

src/plugins/cpptools/cppmodelmanager.h

@@ -100,8 +100,6 @@ public:
     virtual ProjectInfo projectInfo(ProjectExplorer::Project *project) const;
     virtual void updateProjectInfo(const ProjectInfo &pinfo);
 
-    virtual QStringList includesInPath(const QString &path) const;
-
     virtual CPlusPlus::Snapshot snapshot() const;
     virtual void GC();
 
@@ -132,9 +130,6 @@ public:
 
     virtual QList<LanguageUtils::FakeMetaObject::ConstPtr> exportedQmlObjects(const CPlusPlus::Document::Ptr &doc) const;
 
-    void setHeaderSuffixes(const QStringList &suffixes)
-    { m_headerSuffixes = suffixes; }
-
 Q_SIGNALS:
     void projectPathChanged(const QString &projectPath);
 
@@ -187,14 +182,6 @@ private:
     QStringList internalFrameworkPaths() const;
     QByteArray internalDefinedMacros() const;
 
-    void setIncludesInPaths(const QMap<QString, QStringList> &includesInPaths);
-
-    static void updateIncludesInPaths(QFutureInterface<void> &future,
-                                      CppModelManager *manager,
-                                      QStringList paths,
-                                      QStringList frameworkPaths,
-                                      QStringList suffixes);
-
     static void parse(QFutureInterface<void> &future,
                       CppPreprocessor *preproc,
                       QStringList files);
@@ -210,9 +197,6 @@ private:
     QStringList m_frameworkPaths;
     QByteArray m_definedMacros;
 
-    QMap<QString, QStringList> m_includesInPaths;
-    QStringList m_headerSuffixes;
-
     // editor integration
     QMap<TextEditor::ITextEditor *, CppEditorSupport *> m_editorSupport;